A .38-caliber pistol seized after a June 21 car crash in Springfield, Mass., involving a woman from Bristol, Conn., is part of an investigation into a case involving Aaron Hernandez, according to a law enforcement source.

The source did not specify which case the gun is part of, but authorities are investigating the former New England Patriot in connection with a July 2012 double homicide in Boston after they found a car, rented in his name, that matched the description of the vehicle sought in connection with that case.

The star tight end, who grew up in Bristol, has also been charged with murder in the June 17 shooting death of Odin Lloyd. The weapon used in that crime, which authorities say is a .45-caliber Glock pistol, has not been recovered.

CBS3 in Springfield on Monday reported that the gun seized from the multi-vehicle crash on I-91 in June was connected to the double homicide in Boston. Police found the .38-caliber pistol in the trunk of a car driven by Jailene Diaz-Ramos, of Bristol, who was charged with unlicensed operation of a motor vehicle and three firearms-related charges.

Diaz-Ramos told authorities a man named “Chicago” and his “buddies” — who she said were football players — had put belongings in her trunk. The weapon was stowed in a black briefcase in the trunk of her car. Police also seized from the car a locked safe, which was in close proximity to the firearm, the police report states.

No charges have been made in the investigation into the 2012 double homicide in Boston. Authorities seized the car sought in connection with that case from a home owned by Hernandez’s uncle. A law enforcement source said the car had been parked in the garage for about a year.